Home / 21,059,001.28-29,061,614.06-12,357,318.88

Finding the Fourth Proportional to 21,059,001.28, 29,061,614.06 and 12,357,318.88

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Solution

The fourth proportional to 21,059,001.28, 29,061,614.06 and 12,357,318.88 is: 17,053,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059,001.28 : 29,061,614.06 = 12,357,318.88 : x
  2. Step 2: Convert to fraction form
    21,059,001.28/29,061,614.06 = 12,357,318.88/x
  3. Step 3: Cross multiply
    21,059,001.28x = 29,061,614.06 × 12,357,318.88
  4. Step 4: Simplify right side
    21,059,001.28x = 359,123,632,106,911.44
  5. Step 5: Solve for x
    x = 359,123,632,106,911.44/21,059,001.28
  6. Step 6: Final answer
    x = 17,053,212.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.